Atty. Karl A. Weiss

Atty. Karl A. Weiss

With over 20 years of experience and 250+ merger/acquisition transactions (ranging up to $120M), Karl provides comprehensive legal and tax counsel, personalized to all types of closely held and family businesses throughout the Pacific Northwest. Drawing upon a significant federal and state tax background, he enjoys assisting clients with choice of entity and formation, governance and operating agreements, employment and compensation plans, service agreements, as well as business dissolutions, succession planning, mergers/acquisitions, and advanced estate/tax planning.

Call (206) 624-1230 Book Appointment

Profile Summary

About Karl A. Weiss at a glance

Karl A. Weiss is a family law, business, and tax attorney based in Seattle, Washington, practicing at Lasher. Educated at New York University (LL.M., 1999) and Willamette University (J.D., 1998). Recognitions include Lawyer of the Year — Closely Held Companies and Family Businesses Law (Seattle) (2026), Best Lawyers in America — Closely Held Companies and Family Businesses Law (2026), and Best Lawyers in America — Tax Law (2026). Serands clients in Seattle, WA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • With over 20 years of experience and 250+ merger/acquisition transactions (ranging up to $120M), Karl provides comprehensive legal and tax counsel, personalized to all types of closely held and family businesses throughout the Pacific Northwest
  • Drawing upon a significant federal and state tax background, he enjoys assisting clients with choice of entity and formation, governance and operating agreements, employment and compensation plans, service agreements, as well as business dissolutions, succession planning, mergers/acquisitions, and advanced estate/tax planning
  • Utilizing a team approach, he works closely with the clients’ other professional advisors
  • Prior to joining Lasher Holzapfel Sperry and Ebberson, Karl was a Manager with a big-four accounting firm in its state and local tax consulting practice, where he assisted Fortune 500 clients, middle market businesses, and emerging growth companies in tax and strategic planning
  • During law school, Karl served on the Willamette Law Review, was a member of Inns of Court (mentored by Oregon Supreme Court Chief Justice Wallace P. Carson), and clerked for the five Magistrates of the Oregon Tax Court

Practice Areas Explained

Karl A. Weiss's Areas of Practice

Each practice area below reflects the types of cases Karl A. Weiss handles, with a brief overview of what that area of law covers.

Family Law

Family law attorneys handle divorce, child custody, child support, adoption, prenups, and protective orders. Find verified family lawyers near you.

Karl A. Weiss is one of 187,066 family law attorneys indexed nationally. Browse family law attorneys in Washington →

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Karl A. Weiss is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Washington →

Tax Law

Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.

Karl A. Weiss is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in Washington →

Jurisdictional Context

Why local counsel matters in Washington

Practicing law in Washington. Legal matters in Washington are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Seattle are typically filed in the local municipal court or the appropriate Washington state district court, depending on subject matter and amount in controversy. An attorney licensed in Washington brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Washington courts without local counsel or pro hac vice admission.

Looking for additional Washington attorneys? Browse all attorneys in Seattle or all attorneys in Washington.

Frequently Asked

Common questions about Karl A. Weiss

Where is Karl A. Weiss's law office located?
Karl A. Weiss's law practice is located in Seattle, Washington. The firm is Lasher. You can contact the office directly through this profile page.
What practice areas does Karl A. Weiss handle?
Karl A. Weiss focuses on family law, business, tax. Each practice area listed reflects experience handling cases of that type in Washington.
Where did Karl A. Weiss go to law school?
Karl A. Weiss earned their education at (LL.M., 1999); (J.D., 1998); (B.A.).
How can I contact Karl A. Weiss for a consultation?
You can contact Karl A. Weiss directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Karl A. Weiss received?
Karl A. Weiss's notable recognition includes: Lawyer of the Year — Closely Held Companies and Family Businesses Law (Seattle); Best Lawyers in America — Closely Held Companies and Family Businesses Law; Best Lawyers in America — Tax Law; Best Lawyers in America — Additional Areas of Practice:; Best Lawyers in America — Business Organizations (including LLCs and Partnerships).

Education

LL.M.
New York University
- 1999
J.D.
Willamette University
- 1998
B.A.
University of Wisconsin–Madison
- In Progress

Awards

Lawyer of the Year — Closely Held Companies and Family Businesses Law (Seattle)
- 2026
Best Lawyers in America — Closely Held Companies and Family Businesses Law
- 2026
Best Lawyers in America — Tax Law
- 2026
Best Lawyers in America — Additional Areas of Practice:
- 2026
Best Lawyers in America — Business Organizations (including LLCs and Partnerships)
- 2026
Best Lawyers in America — Mergers and Acquisitions Law
- 2026
Best Lawyers in America — Awards:
- 2026
Best Lawyers in America — Named to “Best Lawyers” 2021 Edition of The Best Lawyers in America in Closely Held Companies and Family Businesses Law
- 2026
Best Lawyers in America — Super Lawyers magazine Washington (business/corporate law) – 2010-2022
- 2026
Best Lawyers in America — Seattle Met magazine Top Lawyer (business/corporate law) – 2011-2020
- 2026
Best Lawyers in America — Washington Law & Politics magazine, Rising Star, 2008 and 2009
- 2026
Best Lawyers in America — Seattle Business Monthly magazine (tax law) 2007
- 2026
Best Lawyers in America — Seattle magazine, Top Lawyer (tax law) 2007
- 2026

Reviews

These reviews belong to platform users; they do not constitute advertisement or promotion for the attorney. Opinions are published for informational purposes only.

No reviews yet.